Tug fastener or attachment



l ATENT 0 EFrcE.

GEORGE DAVIDSON, OF I-IEBER, ARKANSAS.

TUG FASTENER 0 ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 568,083, datedSeptember 22, 1896. Application filed September 7,1895. $erla1 No.561,834. (No model.)

To all whom, it may concern:

Be it known that I, GEORGE DAVIDSON, a citizen of the UnitedStates,residing at Heber, in the county of Oleburne and State ofArkansas, have invented certain new and useful Improvements in TugFasteners or Attachments; and I do hereby declare the following to beafull,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to certain new and useful improvements in tugfasteners or attachments; and it has for its object, among others, toprovide a simple and cheap attach- -ment which can be easily applied andwhich in practice shall be eflicient and durable. I provide meanswhereby the draft-rod is prevented from turning, being so constructedand arranged that it must move in a straight line, avoiding bindingandundue friction, and it is also provided with'means for adj usting thetension of the spring which surrounds the said rod and is confinedwithin the frame.

Another object is to provide an attachment that can be readily appliedto or connected with any kind of hame or tug or trace chain.

Other objects and advantages of the invention will hereinafter appear,and the novel features thereof will be specifically defined by theappended claim.

The invention in this instance resides in the peculiar combinations, andthe construction, arrangement, and adaptation of parts, all as morefully hereinafter described, shown in the drawings,and then particularlypointed out in the claim.

The invention is clearly illustrated in the accompanying drawings,which, with the letters of reference marked thereon, form a part of thisspecification, and in which Figure 1 is a perspective View of myimproved tug attachment. Fig. 2 is a substantially central longitudinalsection through the same.

Like letters of reference indicate like parts throughout the two views.

Referring now to the details of the drawings by letter, A designates theframe, which is flattened at one end, as shown at A, and

provided with holes for the attachment of the loop B. In the other endof the frame is an opening a, through which the draft-rod C is fitted toslide loosely, the inner end of the said draft-rod being screw-threadedand provided with a nut D, as shown. The end of the draft-rod outsidethe frame is flattened, as seen at O, and provided with holes for theriveting thereto of the buckle E. The sides of the frame are formed.upon their inner faces with the channels or grooves F, in which work theflanges or ribs or lugs G, extending from opposite sides of thepressure-plate H, which is held upon the inner end of the draftrod andis adjusted by the nut on the said end of the rod.

I is a spring around the draft-rod within the frame. One end finds itsbearing against the outer face of the pressure-plate and the other endagainst the inner face of the head of the frame, as shown. The frame maybe left open or it may be covered with 1eather,-

sheet metal, or any suitable material. Any form of spring maybeemployed. Instead of the coiled spring shown I may sometimes employ arubber tube sleeved upon the draftrod. Other such changes in the detailsmay be resorted to without departing from the spirit of the invention orsacrificing any of its advantages.

What is claimed as new is- The combination with a spring-tug,comprisinga frame with one end flattened,a loop attached at saidflattened end, a recess in said frame, a draft-rod sliding in saidrecess and projecting through the hole a, a spiral spring surroundingsaid rod, means for adjusting the tension of said spring consisting ofthe pressure-plate H which is held upon the inner end of the draft-rodand operated by the nut on the end of the said rod, substantially asdescribed. i

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

GEORGE nAvmsoN.

"Witnesses:

W. P. MORTON, W. O. WATKINS.

